通过河工模型试验，应研究出技术可行、经济合理的整治方案。

Through the river model experiment , the tech-economic reasonable river improvement measures are studied.

youdao

通过河工模型试验，应研究出技术可行、经济合理的整治方案。

Through the river model experiment , the tech-economic reasonable river improvement measures are studied.

youdao